Patents by Inventor Wilhelmus Cornelius Kessels

Wilhelmus Cornelius Kessels has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Electric incandescent lamp
    Patent number: 4039885
    Abstract: A low voltage incandescent lamp constructed from a reflector and a cover glass both consisting of pressed glass and which is referred to as a sealed beam type. Through the rear wall extend two conductors between which a filament is stretched. The filament, which may be subjected to impact is fixed by means of a bridge which comprises an electrically insulating mass through which extend two supporting wires. The supporting wires at their free ends are connected to the conductors at spaced points.
    Type: Grant
    Filed: February 19, 1976
    Date of Patent: August 2, 1977
    Assignee: U.S. Philips Corporation
    Inventors: Johannes Leonardus Andreas Maria VAN Boekhold, Wilhelmus Cornelius Kessels